CN109826964A - A kind of axial limit structure - Google Patents
A kind of axial limit structure Download PDFInfo
- Publication number
- CN109826964A CN109826964A CN201910193287.7A CN201910193287A CN109826964A CN 109826964 A CN109826964 A CN 109826964A CN 201910193287 A CN201910193287 A CN 201910193287A CN 109826964 A CN109826964 A CN 109826964A
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- China
- Prior art keywords
- valve
- ring
- valve body
- bracing ring
- valve rod
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000000694 effects Effects 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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- Lift Valve (AREA)
Abstract
A kind of axial limit structure, including valve body, bracing ring, valve rod are packed into valve body axis hole, valve rod is cased with bearing, and divided ring is packed into the limiting slot of valve rod tail portion, and valve deck is connected with valve body, the bearing lower part is equipped with bracing ring, and the bracing ring is equipped with seam allowance, and the bracing ring seam allowance is abutted with divided ring.The invention has the advantages that ensuring good limit effect, and reduce abrasion.
Description
Technical field
The present invention relates to a kind of butterfly valve, especially a kind of axial limit structure of butterfly valve.
Background technique
Small light, the applied widely butterfly valve product of type, various performance parameters are stepping up at present.Butterfly valve moves
Making principle is that butterfly plate rotation is driven by valve rod, realizes valve opening and closing.Flexibly in order to ensure butterfly plate opening and closing, butterfly plate is in opening-closing process
In must not generate axial displacement.
The prior art is that divided ring is directly arranged separately in the annular groove of valve rod tail portion, and divided ring is abutted with valve body step, real
Existing axial limiting, this divided ring are easy to fall off during installation without support, are not easy to assemble, meanwhile, divided ring and valve body directly connect
Friction is touched and existed, " occlusion " is easy to happen, causes valve bite.
Limit pad is installed by screw in the valve rod tail portion of the prior art, and limit pad is abutted with bearing, realizes axial limiting.But
Due to the presence of the unfavorable factors such as pipe vibration, shearing force, the screw of fixed limit pad will appear loosening after being used for a long time, and make to limit
Position pad and valve rod tail portion generate gap, lose limit effect.
Summary of the invention
For the above problem of the prior art, the present invention, which provides, a kind of limits stable axial limit structure.
The technical scheme is that a kind of axial limit structure, including valve body, bracing ring, valve rod are packed into valve body axis hole
Interior, valve rod is cased with bearing, and divided ring is packed into the limiting slot of valve rod tail portion, and valve deck is connected with valve body, and the bearing lower part is equipped with branch
Support ring, the bracing ring are equipped with seam allowance, and the bracing ring seam allowance is abutted with divided ring.
The invention has the advantages that ensuring good limit effect, and reduce abrasion.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention.
In figure: 1. valve rods；2. valve body；3. bearing；4. bracing ring；5. divided ring；6. bolt；7. end cap.
Specific embodiment
As shown in Figure 1, a kind of axial limit structure, including valve body, bracing ring, valve rod are packed into valve body axis hole, valve stem sleeve
There is bearing, divided ring is packed into the limiting slot of valve rod tail portion, and valve deck is connected with valve body, and the bearing lower part is equipped with bracing ring, described
Bracing ring is equipped with seam allowance, and the bracing ring seam allowance is abutted with divided ring.
Divided ring provides bearing by bracing ring, efficiently solves the problems, such as that divided ring is caducous when installation.Meanwhile valve opens
Divided ring and valve body do not contact directly during closing, and the outer circle of bearing step and bracing ring is that wide arc gap is matched with valve body
It closes, not will cause valve body wear.
Claims (1)
1. a kind of axial limit structure, including valve body, bracing ring, valve rod is packed into valve body axis hole, and valve rod is cased with bearing, divided ring
It is packed into the limiting slot of valve rod tail portion, valve deck is connected with valve body, which is characterized in that the bearing lower part is equipped with bracing ring, the branch
Support ring is equipped with seam allowance, and the bracing ring seam allowance is abutted with divided ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910193287.7A CN109826964A (en) | 2019-03-14 | 2019-03-14 | A kind of axial limit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910193287.7A CN109826964A (en) | 2019-03-14 | 2019-03-14 | A kind of axial limit structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109826964A true CN109826964A (en) | 2019-05-31 |
Family
ID=66868996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910193287.7A Withdrawn CN109826964A (en) | 2019-03-14 | 2019-03-14 | A kind of axial limit structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109826964A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110439984A (en) * | 2019-08-23 | 2019-11-12 | 江苏神通阀门股份有限公司 | A kind of limit of hydraulically operated equipment and fine tuning structure |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865295A (en) * | 2010-06-13 | 2010-10-20 | 无锡智能自控工程有限公司 | Shaft-end positioning structure of butterfly valve transmission shaft |
| CN104343992A (en) * | 2014-10-17 | 2015-02-11 | 江苏腾天工业炉有限公司 | High-temperature pulse reversing valve |
| CN104676019A (en) * | 2015-03-04 | 2015-06-03 | 江苏神通阀门股份有限公司 | Axial limiting structure of butterfly valve |
| CN105387222A (en) * | 2015-12-16 | 2016-03-09 | 江苏神通阀门股份有限公司 | Limiting structure for a valve rod |
| CN205423861U (en) * | 2016-03-28 | 2016-08-03 | 上海东宝阀门制造有限公司 | Welding butterfly valve |
| CN205534550U (en) * | 2016-04-20 | 2016-08-31 | 江南阀门有限公司 | Valve rod axial positioning seal structure |
| CN109357075A (en) * | 2018-11-30 | 2019-02-19 | 江南阀门有限公司 | The anti-jamming increasing Slipped Clove Hitch structure in valve rod lower end |
| CN209762269U (en) * | 2019-03-14 | 2019-12-10 | 江苏神通阀门股份有限公司 | Axial limiting structure |
-
2019
- 2019-03-14 CN CN201910193287.7A patent/CN109826964A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865295A (en) * | 2010-06-13 | 2010-10-20 | 无锡智能自控工程有限公司 | Shaft-end positioning structure of butterfly valve transmission shaft |
| CN104343992A (en) * | 2014-10-17 | 2015-02-11 | 江苏腾天工业炉有限公司 | High-temperature pulse reversing valve |
| CN104676019A (en) * | 2015-03-04 | 2015-06-03 | 江苏神通阀门股份有限公司 | Axial limiting structure of butterfly valve |
| CN105387222A (en) * | 2015-12-16 | 2016-03-09 | 江苏神通阀门股份有限公司 | Limiting structure for a valve rod |
| CN205423861U (en) * | 2016-03-28 | 2016-08-03 | 上海东宝阀门制造有限公司 | Welding butterfly valve |
| CN205534550U (en) * | 2016-04-20 | 2016-08-31 | 江南阀门有限公司 | Valve rod axial positioning seal structure |
| CN109357075A (en) * | 2018-11-30 | 2019-02-19 | 江南阀门有限公司 | The anti-jamming increasing Slipped Clove Hitch structure in valve rod lower end |
| CN209762269U (en) * | 2019-03-14 | 2019-12-10 | 江苏神通阀门股份有限公司 | Axial limiting structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110439984A (en) * | 2019-08-23 | 2019-11-12 | 江苏神通阀门股份有限公司 | A kind of limit of hydraulically operated equipment and fine tuning structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190531 |